Finding the Fourth Proportional to 158,171.74, 218,276.73 and 86,551.75
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Solution
The fourth proportional to 158,171.74, 218,276.73 and 86,551.75 is: 119,441.27
Step by Step Solution
- Step 1: Write the proportion equation
158,171.74 : 218,276.73 = 86,551.75 : x - Step 2: Convert to fraction form
158,171.74/218,276.73 = 86,551.75/x - Step 3: Cross multiply
158,171.74x = 218,276.73 × 86,551.75 - Step 4: Simplify right side
158,171.74x = 18,892,232,965.78 - Step 5: Solve for x
x = 18,892,232,965.78/158,171.74 - Step 6: Final answer
x = 119,441.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.